/**
 * Sanitizes an SVG markup string so it is safer to inject via `innerHTML`.
 *
 * Rules:
 * - Drops blocked elements (`script`, `foreignObject`, `iframe`, etc.)
 * - Removes event handler attributes (`on*`)
 * - Allows URL-like attributes only when they are local fragment references (`#...`)
 *
 * Returns an empty string when no SVG root exists.
 */
export declare function sanitizeSvgMarkup(svgMarkup: string): string;
/**
 * Same sanitization as {@link sanitizeSvgMarkup}, but returns the cloned SVG element
 * ready to attach via `appendChild` / `replaceChildren`. Lets callers avoid assigning
 * markup strings to `innerHTML` at the call site.
 *
 * Returns `null` when no SVG root exists.
 */
export declare function sanitizeSvgToElement(svgMarkup: string): Element | null;